How to decode RTPtype 96 and RTPtype 97 Payload in Wireshark??

asked 2020-08-22 20:14:48 +0000

Eagle gravatar image

How to decode RTPType 96, 97 and other payload having series of RTPType........like this. Anyone Having any idea ??? Regards.....

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Have you tried pointing the dissector to those ports?

Chuckc gravatar imageChuckc ( 2020-08-22 21:03:42 +0000 )edit

No, I haven't tried to point the dissectors...Which ports are you taking about ??

Eagle gravatar imageEagle ( 2020-08-22 21:44:33 +0000 )edit

Request tell me how to dissect or which option to go in Wireshark? Tell me how to decode this Payload type 96 and 97 and sich series. And what kind of payloadtype are these payloads called ?? It's not available there in payload type list as well. Also as you sent link, I visited edit-preference-....But there is no such option in the name of protocol...It's just setting for protocol. Not RTP or like that is there....Which Wireshark version will include those options, being told by you?

Eagle gravatar imageEagle ( 2020-08-22 21:52:58 +0000 )edit

(Sorry - auto-complete - should have been payload type not ports)

There are two sample captures with dynamic payload types attached to this bug.
Can you use them as an example of the decoding you are looking for?
This display filter will show DynamicRTP packets:

rtp.p_type >=96 and rtp.p_type<=127
Chuckc gravatar imageChuckc ( 2020-08-23 16:18:56 +0000 )edit

What's the difference RTPtype 96 and Payloadtype 96???? Are these two different terminology or they are different or no such terminology exist there...????

Eagle gravatar imageEagle ( 2020-08-24 10:41:42 +0000 )edit

Plz tell me the procedure step by step how to decode this dynamic payload RTPtype 96 and RTPtype 97. Would this procedure be applicable to all Payload Types of such category....???

Eagle gravatar imageEagle ( 2020-08-24 10:43:43 +0000 )edit

Hi, RTPtype 96 and Payloadtype 96 are the same thing. Payload types < 96 has a fixed meaning(codec) attached to them (see IANA asignments) Pauload types 96 - 127 are called dynamic payload types and the caracteristics of that RTP stream is signaled between the nodes exchanging the stream. So unless you have the control signaling or know the assigment there is no way to know what the content is. When you say decode this payload type you mean display and interpreat the byte content of the RTP payload which may only be semi useful unless you work on the codecs involved.

Anders gravatar imageAnders ( 2020-08-26 13:23:27 +0000 )edit